# CVE-2026-107155: SonicOS permissive cross-domain policy in management interface

Source: https://junglewise.ai/threats/cve-2026-107155-a-permissive-cross-domain-policy-vulnerability-has-been  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-06. Updated: 2026-11-06  
License: CC BY 4.0 with a link back

CVE-2026-107155 · Severity: high · CVSS 8.8 · Published 2026-11-06

SonicOS is a firewall operating system that protects networks. A flaw in its web-based management interface allows an attacker on the network to make unauthorized changes to the firewall without logging in, potentially compromising the entire network it defends.

Technologies: [SonicWall SonicOS](https://junglewise.ai/threats/technologies/sonicos). Vendors: [SonicWall](https://junglewise.ai/threats/vendors/sonicwall).

## Quick answers

**Is CVE-2026-107155 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-107155 being exploited in the wild.

**How severe is CVE-2026-107155?** High severity, with a CVSS score of 8.8, published 6 November 2026.

**Which products and versions are affected?** SonicWall SonicOS <UNKNOWN>.

**Is there a fix for CVE-2026-107155?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-107155 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-107155?** Check whether you run SonicWall SonicOS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A permissive cross-domain policy (likely an overly broad CORS configuration) in the SonicOS management interface allows unauthenticated remote attackers to perform unauthorized operations. The vulnerability requires specific conditions that are not detailed in the truncated advisory. An attacker can exploit this via network access to manipulate firewall settings or gain administrative functionality.

## Affected products

- SonicWall SonicOS <UNKNOWN>

## Timeline

- 2026-11-06: disclosed

## References

- [https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014)

## Related threats

- [SonicWall SonicOS heap-based buffer overflow in SSL-VPN](https://junglewise.ai/threats/cve-2026-82308-a-pre-authentication-heap-based-buffer-overflow-vulnerability-has)
- [SonicWall SonicOS heap buffer overflow in TACACS+ client](https://junglewise.ai/threats/cve-2026-77709-a-pre-authentication-heap-based-buffer-overflow-vulnerability-has)
- [SonicWall SonicOS stack-based buffer overflow in TACACS+ client](https://junglewise.ai/threats/cve-2026-77708-a-pre-authentication-stack-based-buffer-overflow-vulnerability)
- [SonicWall SonicOS SSLVPN SAML authentication bypass](https://junglewise.ai/threats/cve-2026-19868-an-authentication-enforcement-vulnerability-in-sonicos-sslvpn)
- [SonicWall SonicOS weak password hashing](https://junglewise.ai/threats/cve-2026-19703-a-weak-password-hashing-vulnerability-has-been-identified-on)